Use of N-phenyl-1-naphthylamine in the uterus to prevent pregnancy

Abstract

The use of N-phenyl-1-naphthylamine by injecting or introducing such drug directly into the uterus is disclosed as a means of preventing pregnancy after intercourse has occurred. Various means of introducing such drug are disclosed, such as by mixing such drug with jelly carriers, foam carriers, or paraffin oil.

What is claimed is: 
     
       1. A method of preventing pregnancy in a female which comprises introducing an effective amount of the drug N-phenyl-1-naphthylamine directly into the uterus of the female after sexual intercourse. 
     
     
       2. The method as described in claim 1, wherein the step of introducing N-phenyl-1-naphthylamine comprises introducing a mixture of said drug and a foam carrier directly into the uterus of the female after sexual intercourse by injection means. 
     
     
       3. The method as described in claim 1, wherein the step of introducing N-phenyl-1-naphthylamine comprises introducing a mixture of said drug and a jelly carrier directly into the uterus of the female after sexual intercourse by injection means. 
     
     
       4. The method as described in claim 1, wherein the step of introducing N-phenyl-1-naphthylamine comprises introducing a mixture of said drug and paraffin oil directly into the uterus of the female after sexual intercourse by injection means. 
     
     
       5. The method as described in claims 1, 2, 3 or 4, wherein said injection means is accomplished by way of the vaginal tract, through the cervix and into the uterus. 
     
     
       6. The method as described by claim 5, wherein the amount of the drug introduced into the uterus is about 10 milligrams or greater. 
     
     
       7. A pregnancy prevention composition comprising an effective amount of N-phenyl-1-naphthylamine and a suitable carrier medium selected from the group consisting of jelly carriers, foam carriers, and paraffin oil, for introducing said drugs directly into the uterus. 
     
     
       8. The composition as described by claim 7, wherein the concentration of N-phenyl-1-naphthylamine is equal to or greater than 5 milligrams per milliliter of said carrier medium.